320W 450W LED Grow Light 281PRO Dimmable Foldable Phytolamp Full Spectrum IP65 Waterproof Growth Lamp for Indoor Plants Specifications: Product Name: LED Grow Light Input voltage: 100-277V AC50/60Hz Brand LED: SAMSUNG 281PRODimming:0~10V/PWM Energy: 320W/450WEffciency(PPE): 2μmol/J / 2μmol/J Light Output PPF: 736umol/s / 1080umol/s Light Beam angle: one hundred twenty ° Waterproof: IP65 Material: Aluminum + PC Spectrum: 3000K+6500K+660nm Red Light+UV 395nm+IR 730nm Covering 4 advancement cycles Intelligent formulation - one button switching Full Spectrum Flowering level Growth degree Seedling level Tips of Hanging Distance and Lighting Time Seedling stage 60% brightness llumination time: 12h/day Height: 50~ 60cm Growth stage 100% brightness llumination time: 18h/day Height: 40~50cm Flowering and fruiting period 100% brightness llumination time: 12h/day Height: 30~40cm Dimmable Daisy Chain Funtiuon Connect as much as 100 items in paraller (using RJ-14 cables) for intelligent controls in addition 0-10V dimming. Select wattage and brightness for all lights via solely adjusting the first gentle in the string. 180°Foldable Foldable designs is conducive to saving the packaging field of products,which tremendously reduces the transportation cost of products.